Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dich hoc ve snippets" » "sinh hoc ve snippets", "hinh hoc ve snippets", "tinh hoc ve snippets", "dich hoc va snippets", "dich hoc vi snippets", "dich hoc vo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dich hoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dich hoc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dich hoc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dich hoc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.